British actress Keira Knightley was stunned when she worked alongside DAME Judi Dench, when the legendary actress forgot her lines.

Knightley was terrified of shooting a scene with Dench in Pride And Prejudice, but soon regained her confidence when she realised the stalwart star was only human.

Knightley tells British movie magazine Empire, "I was absolutely s**tting myself before meeting Judi Dench.

"But you know what happened? She couldn't remember her lines.

"And she's getting quite embarrassed and a bit flustered. But still being lovely, and amazing and fantastic.

"You just go, 'Ooh, okay, I'm not that s**t, because if she does it and still gives great performances, then maybe I can too."